Could FLiRT Variants Cause Another Covid-19 Surge?
A doctor collects a swab for Covid-19 testing.getty A new Covid-19 variant known as KP.2, or FLiRT, began to emerge in the United States in early March of this year. At that time, KP.2 represented only 0.4% of all SARS-CoV-2 strains being sequenced, but it …